Polishing-wheel.



No. 628,!72, 1 Patented July 4, I899.

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POLISHING WHEEL.

(Application filed Oct. 29, 1898.)

2 Sheets-Sheet m: Noam; warms co. FHOYD-LITHQ. WASNIHGTON, u. c.

No.- 628,172. Patented July 4, I899.

E. D. WOODS.

POLISHING WHEEL.

(Application fild Oct. 29, 1898.) (No Model.) 6 2 Sheets-Sheet 2INVENTOR @MIA 5M WITNESSES:

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Q BY W s Wbfllhi-W J ATTORNEY 8 m: NORRIS PETERS co. moruumo. wasnmurcu.u. c

\m U ITED; STATES PATENT OFFICE.

cation and forming part hereof, in which simi- EDWARD DINSMOORE WOODS,OF GRANVILLE, NEXV YORK, ASSIGNOR TO THE WOODS SPECIALTY COMPANY, OF NEWYORK.

POLISHING-WHEEL.

srEoIFIoArIon forming part of Letters Patent No; 628,172, dated July 4,1899.

Application filed October 29, 1898. Serial No. 694,891. (N0 model.)

To all whom it may concern.-

Be it known that I, EDWARD DINSMOORE WOODS, a citizen of the UnitedStates, and a resident of Granville, New York, have in- Vented anew anduseful Improvement in Polishing-Wheels, of which the following is aspecification.

My invention relates to polishing-wheels.

It has for its object to provide a polishingwheel. with a yieldingelastic surface adaptedfor use upon many different kinds of work,-simple in construction, with an efficient and durable polishing-surface,and one specially adapted for polishing fiat surfaces, and havingapolishing-surface whose rigidity depends upon the speed of rotation ofthewheel and whose diameter and width can readily be varied.

It consists of the devices herein shown and described.

\ In the drawings accompanying this specifilar reference characters inthe different figures represent corresponding parts, I have shown andwill now proceed to describe the preferred form of my improved device.

Figure 1 is a side View of my improved device viewed as shown by thearrow in Fig. 2. Fig. 2 is a vertical cross-section on the lines 2 2 inFig. 1 viewed as shown by the arrow, showing the tire in the position itassumes when the wheel is at rest. Fig. 3 is a similar section of theupper part of the wheel, show ing the position of the tire when thewheel is rotating; and Fig. 4 is a similar section of the upper part ofa modification of my improved wheel. Figs. 5 and 6 are a side elevationof and a central vertical section through my improved wheel, with aremovable'polishingband in position thereon in the position assumed bythe wheel during rotation.

AA are the two sides of myimproved wheel, and B is the shaft of thesame. The side A has a hub a encircling the shaft and by means of screwf passing through the hub and into a small depression of shaft B iseffectually locked or made fast upon the shaft. As shown, the side A isremovable from the shaft. It is locked in position on the shaft by meansof screw E passing through the hub a of side A into groove B, cut in thesurface of the shaft. By turning the screw E one way the side A is leftfree to move longitudinally on the shaft and may be removed from thesame.

If it is desired to lock the side A to the shaft, it is done by turningscrew E until it firmly grips the' floor of groove B. By thisarrangement the side A may be removed from the wheel or may be placed atany position along the groove B and be securely locked to the shaft, soas to rotate with it.

O is the tire, the upper surface of which is preferably provided withemery or other suitable substance fitted for polishing purposes.

It is preferably made of leather, although it can be made of anysuitable material. The preferred form of this tire is shown in Figs.

2 and 3, and consists of three portionsan inner portion d an outerportion (1 having a polishing-surface, and a smaller connecting 7oportion 61 These three parts are fastened together by any suitablemeansas, for example, by gluing them togetheror they may be madeintegral with one another or ofone piece. The above describedarrangement leaves a space 61 at each side of the connecting portionbetween the outer portion and the inner portion of the tire for apurpose presently to be described.

Each side A A has a flange 0 c, which, as shown in Figs. 2 and 3,project into the spaces cl between the outer and inner portions of thetire. These flanges are retaining-flanges for the tire and act as a stopto limit the outward movement of the tire.

' The tire is made to loosely lit the retainingflanges c c, the space (1between the inner portion d and the outer portion (1 of the tire beingslightly greater than the thickness of the retaining-flanges c c. Thispermits to the tire a slight movement in a radial direction. When thewheel is at rest, the tire drops down into the position shown in Fig. 2.Then the wheel is rotating, the centrifugal force throws the tireoutward, increasing the 5 diameter of the tire and bringing the outersurface of the inner portion (1 of the tire into contact with the innersurface of the retaining-flanges c 0, thus limiting the outward radialmovement of the tire and holding it in operative position for polishing.A polishing-surface is thus presented which under the action ofcentrifugal force as the wheel rotates is yielding and elastic incharacter and is admirably fitted to act as a polishingsurface,especially for fiat metallic surfaces such, for example, as knives. Thespeed of rotation determines the rigidity of the polishing-surface. Thefaster the wheel rotates the harder becomes that polishing-surface andthe less the speed of the wheel the more yielding and the softer itbecomes.

The sides A A of the wheel preferably have openings e, permitting theatmosphere free access to the under side of the tire, thus assisting theaction of the centrifugal force in pressing the tire outward.

The tire of my improved polishing-wheel can readily be taken off and bereplaced by another tire by removing the removable side A, and as theside A can be locked to the shaft at any desired point on shaft B tiresof any desired width can be used, adapted to different kinds of work.

I prefer the form of tire shown in Figs. 1, 2, and 3; but this form canof course be widely varied without departing from my invention. 1 haveshown, by way of illustration, in Fig. 4 another form of tire. As thereshown, the tire consists of but one piece and is arranged entirelyinside of the retaining-flanges c c. The operation of this form of myimproved device is, however, the same as that of the form abovedescribed. The preferred form of tire shown in Figs. 1, 2, and 3 has theadvantage over that shown in Fig. 4 of enabling the workman to polishinto corners, which cannot be done with the wheel shown in Fig. 4.

The form and location of the stop for limiting the outward movement ofthe belt can also be varied from those of the retainingflanges cc aslong as it'acts to limit the outward movement of the belt.

The tire of my improved wheel can itself be used as thepolishing-surface by applying emery and glue or other suitable polishingmaterial to the outer face of the tire, or it can be used merely as asupport for a removable polishing-band J, as shown in Figs. 5 and 6. Inthese figures the tire and polishing-band are shown in their outwardposition, the position assumed by them when the wheel is rotating. Sucha removable band is easily placed upon the tire or removed therefromwhen the wheel is at rest and through the increase in the diameter ofthe tire is firmly held in place upon the tire during the rotation ofthe wheel. Removable bands of different widths, diameter, and charactercan be employed, as desired.

Although my improved tire and the removable polishing-band are shown inthe drawings as having a flat outer surface, they are not limited tothis shape, and any other suitable shape may be employed for this or anyother part of the tire or band as long as they are not secured to thesides of the wheel and are free to move radially outward when the wheelrotates and are restrained from excess ive outward movement by one ormore stops e. I prefer, however, the flat polishing-surface shown, as itis better adapted for certain kinds of work.

As both the tire itself and the removable polishing-bands are easilyremoved and replaced, the wheel is capable of practically continuoususe. This is a great gain over the style of polishing-wheels now in use,which are necessarily idle a large part of the time because of the rapidwearing away of the emcry or other polishing substance from the wheeland the consequent short life of any polishing-surface and the length oftime required for its renewal and for the balancing and truingof theWheel. My improved wheel presents an efficient and durablepolishingsurface, one yielding and elastic in character, varyingautomatically in rigidity with the Varying speed of rotation of thewheel, capable of easy adjustment in width and shape, and especiallyadapted for polishing flat surfaces. It is simple in construction and isadapted for many different kinds of work.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a polishing-wheel a tire capable of movement in a radial directionand adapted to be held in operative position by centrifugal force as thewheel rotates, and a stop for limiting the outward movement of the tire.

2. In a polishing-wheel a tire composed of an outer portion and an innerportion connected together, the inner portion adapted to project insideof a stopand to bear radially outward against the stop when the wheel isrotated, said tire being capable of movement in a radial direction andadapted to be held in operative position by centrifugal force as thewheel rotates, and a stop for limiting the outward movement of the tire.

3. In a polishing-wheel a tire composed of an outer portion, an innerportion and a smaller connecting portion so arranged as to leave a spaceat each side of the connecting portion between the outer and the innerportions, said tire' being capable of movementin a radial direction andadapted to be held in operative position by centrifugal force as thewheel rotates,and retaining-flanges connected with the sides of theWheel and projecting into the spaces between the outer and innerportions of the tire to limit the outward movement of the tire.

4. In a polishing-wheel a tire capable of movement in a radial directionand adapted to be held in operative position by centrifugal force as thewheel rotates, a stop forlimiting the outward movement of the tire, anda removable polishing-band adapted to he slipped upon the tire when thewheel is at rest and to be firmly held thereon as the wheel rotates.

5. In a polishing-wheel a tire composed of an outer portion and an innerportion couneoted together, the inner portion adapted to projectinsideof a stop and to bear radially outward against the stop when the wheelis ICC rotated, said tire being capable of movement in a radialdirection and adapted to be held polishing-band adapted to be slippedupon the tire when the wheel is at rest, and to be firmly held thereonas the wheel rotates.

'6. In a polishing-wheel a tire composed of an outer portion, an innerportion and a smaller connecting portion so arranged as to leave a spaceat each side of the connecting portion between the outer and the innerportions, said tire being capable of movementin a radial direction andadapted to be held in operative position by centrifugal force as thewheel rotates, retainingflanges connected with the sides of the Wheeland projecting into the spaces between the outer and inner portions ofthe tire to limit the outward movement of the tire, and a removablepolishingband adapted to be slipped upon the tire when the. wheel is atrest and to be firmly held thereon as the wheel rotates.

7. In a polishing-wheel a removable side, meansfor locking the side inposition, a tire capable of movement in a radial direction and adaptedto be held in operative position by centrifugal force as the wheelrotates, and a stop for limiting the outward movement of the tire.

8. In a polishing-wheel a removable side, means for locking the side inposition, a tire composed of an outer portion, an inner portion and asmaller connecting portion, so arranged as to leave a space at each sideof the connecting portion between the outer and the inner portions, saidtire being capable of movement in a radial direction and adapted to beheld in operative position by centrifugal force as the wheel rotates,and a retaining-flange on each side of the wheel projecting into thespace between the outer and inner portions of the tire to limit theoutward movement of the tire.

9. In a polishing-wheel, a removable side, a groom in the shaft of thewheel, a screwthread ed pin projecting from the hub of the saidremovable side into said groove,whereby the said side may be locked tothe shaft in any desired position along the groove and be caused torotate with the shaft, a tire capable of movement in a radial directionand adapted to be held in operative positionby centrifugal force'as thewheel rotates, and a stop for limiting the outward movement of the tire.

10. In a polishing-wheel, a removable side, a groove in the shaft of thewheel, a screwthreaded pin projecting from the hub of the said removableside into said groove, whereby the said side may-be locked to the shaftin any desired position along the groove and be caused to rotate withthev shaft, a tire capable of movement in a radial direction and adaptedto be held in operative position by centrifugal force as the Wheelrotates, composed'of an outer portion, an inner portion and a smallerconnecting portion, so arranged as to leave a space at each side of theconnectingportion between the outer and the inner portions, said tirebeing capable of movement in a radial direction and adapted to be heldin operative position by centrifugal force as the. wheel rotates, and aretaining-flange on each side of the wheel projectinginto the spacebetween the outer and inner portions of the tire to limit the outwardmovement of the tire.

In testimony whereof I have signed my name to'this specification in thepresence of two subscribing witnesses.

EDWARD DINSMOORE WVOODS.

Witnesses:

EDWIN SEDGER, SIDNEY MANN.

